I am working on a project that uses EEG signals of the brain to identify emotional states. While surveying the literature, I came across several references where "derived features of bispectrum" are ...

I have the following problem:
The activity of a radioactive isotope was measured with the result $N=625$ impulses/second. If this measurement were to be repeated, state the interval where we can say ...

I'm making a particle motion raffling normal numbers. The normal random numbers raffled are the angles of the directions that the particle is going. The particle speed is constant. Look how this is ...

I recently learned Chebyshev's Inequality (in statistics). He uses the inverse square to specify an upper bound to the proportion of entities of a set as it recedes on either side of the mean. I am ...

I was gathering some data from the particle data group website and for many results it gives a value, an uncertainty and then a scale factor for the uncertainty. For instance, at here, where it gives ...

Suppose I have plotted the body angles of a flying aeroplane.I have two such plots. One of a normal plane, and the other plot in which a primary sensor of the aeroplane is removed. So with the absence ...

Say one is interested in measuring the mean value an approximately sinusoidal voltage with an instrument that has an accuracy of 0.01 V, according to its spec sheet. 10 periods of the oscillation have ...

This question is more about the appearance of a curve that comes up while I am analysing my data rather than an actual physics question, but I think it's relevant.
I have analysed some data from an ...

I am attempting to create an atomic model based on data from a transmission electron microscope (TEM). Basically you shoot electrons at bunch of identical molecules stuck to a grid, and look at the ...

If you have a bunch of events and would like to choose a cut to distinguish background and signal, you can take the likelihood ratio
$$
\lambda(\vec x) = \frac{f(\vec x| s)}{f(\vec x| b)}
$$
and the ...

I have the list of experimental values:
$$\{w_i \pm \Delta w_i\},$$
where $w_j$ is a mean value and $\Delta w_i$ is an error.
I want to calculate the second list $\{a_i \pm \Delta a_i\}$ according to ...

What is the difference between the Kolmogorov-Smirnov test and the Chi-squared test?
When should we use one instead of the other?
I was reading this article, and I got confused a lot.
It is hard to ...

During a physics lab we stumbled upon a little problem. The measuring device was unstable, oscillating between two values. We were told to write down the average with the half-difference between the ...

I am investigating autocorrelation of electrical noise as part of an undergraduate experiment (as detailed in http://physlab.lums.edu.pk/images/a/ab/Correlation.pdf). I sampled noise voltages using an ...

I remember reading somewhere that the problem of exact time-keeping on ships could have been solved a lot earlier than it was if somebody would have had the idea of keeping time with a whole array of ...

Say I am measuring a quantity $x$ in physical system whose true value is approximately sinusoidal in time. I have an instrument to sample this quantity, for which the manufacturer gives an accuracy ...

I'm in an introductory statistical mechanics course, and we've been posed the following situation:
Long-shaped dust particle (so imagine something like a grain of rice) is placed in a gas chamber (so ...

I am trying to understand how to combine uncertainties when they are dependent and independent from each other.
Using this formula :
$$\delta z = \sqrt {\Biggl(\dfrac{\partial f}{\partial x} \delta ...